Which of the following micronutrients does not form components of fertiliser?

(1) Cu, Mn

(2) Zn, K

(3) Fe, Cu

(4) Cu, Zn

Subtopic:  Classification of Nutrients |
 55%
From NCERT
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Which of the following macronutrients does not form components of fertiliser?

(1) N,P

(2) P,S

(3) K,S

(4) S,Zn

Subtopic:  Classification of Nutrients |
 80%
From NCERT
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Nitrogen:
Find the incorrect one.
1. Plants compete with microbes for it.
2. It is a limiting nutrient for both natural and agricultural ecosystem
3. Nitrogen has triple covalent bonds
4. Nitrogen fixation is conversion of nitrogen into nitrate

Subtopic:  Ammonia Assimilation & Nitrogen Export | Nitrogen Metabolism: 1 | Nitrogen metabolism |
 75%
From NCERT
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In nature, ……….. and ……….. provide enough energy to convert Nitrogen to nitrogen oxides (NO, NO2, N2O).

(1) Lightning, Forest fires

(2) Industrial combustions, UV radiation

(3) Forest fire, Lightning

(4) Lightning, UV radiation

Subtopic:  Ammonia Assimilation & Nitrogen Export | Nitrogen Metabolism: 1 | Nitrogen metabolism |
 74%
From NCERT
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Decomposition of organic nitrogen of dead plants and animals into ammonia is called

(1) Nitrogen Fixation

(2) Ammonification

(3) Nitrification

(4) Denitrification

Subtopic:  Ammonia Assimilation & Nitrogen Export |
 83%
From NCERT
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Electrical nitrogen fixation leads to

(1) Formation of Nitrate

(2) Formation of Nitrite

(3) Formation of Ammonia

(4) Formation of Nitrogen

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen metabolism |
 53%
From NCERT
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Ammonia is first oxidized to nitrite by the bacteria except

(1) Nitrosomonas

(2) Nitrococcus

(3) Nitrobacter

(4) All of these

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen metabolism |
 77%
From NCERT
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Nitrification does not include

(1) Conversion of ammonia to nitrite

(2) Conversion of nitrite to nitrate

(3) Conversion of nitrogen to ammonia

(4) Both B and C

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen metabolism |
 70%
From NCERT
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The nitrifying bacteria are

(1) Photoautotroph

(2) Chemoautotroph

(3) Nitrotroph

(4) Organotroph

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen metabolism |
 96%
From NCERT
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Denitrification occurs in

(1) Leaves

(2) Roots

(3) Soil

(4) Environment

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
 63%
From NCERT
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